CloudBlob.Metadata Property
From Storage Client Library NET API
[This topic is part of the Microsoft Azure Storage Client Library 1.7, which has been deprecated. See Storage Client Library for the latest version.]
Gets the blob's user-defined metadata.
Gets the blob's user-defined metadata.
Namespace: Microsoft.WindowsAzure.StorageClient
Assembly: Microsoft.WindowsAzure.StorageClient (in Microsoft.WindowsAzure.StorageClient.dll)
Usage
| Visual Basic |
|---|
Dim instance As CloudBlob Dim value As NameValueCollection value = instance.Metadata |
Syntax
| Visual Basic |
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Public Property Metadata As NameValueCollection |
| C# |
|---|
public NameValueCollection Metadata { get; } |
| C++ |
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public: property NameValueCollection^ Metadata { NameValueCollection^ get (); } |
| J# |
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| JScript |
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Property Value
Type: System.Collections.Specialized.NameValueCollection
The metadata of the blob.
Example
The following code example writes metadata to a blob.
| C# | Copy Code |
|---|---|
static void WriteBlobMetadata(Uri blobEndpoint, string accountName, string accountKey)
{
// Create service client for credentialed access to the Blob service.
CloudBlobClient blobClient =
new CloudBlobClient(blobEndpoint, new StorageCredentialsAccountAndKey(accountName, accountKey));
// Return a blob reference.
CloudBlob blob = new CloudBlob("mycontainer/myblob.txt", blobClient);
// Write some text to the blob.
blob.UploadText("this is a text blob");
// Define some metadata for the blob.
blob.Metadata["category"] = "images";
blob.Metadata["owner"] = "azureix";
// Write the metadata to the service.
blob.SetMetadata();
}
| |
Remarks
The FetchAttributes method populates the system properties and user-defined metadata of a blob. Before reading the properties or metadata of a blob, you should always call this method or the BeginFetchAttributes method to retrieve the latest values for the properties and metadata of the blob from the service.
Thread Safety
Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.